Question

AJUDE EQUAÇÃO 2 GRAU

f(x) = - 5 x2 + 3 x

Answer 1

delta=b^2-4a.c
delta=9-4*(-5)*0
delta=9

X'=-b+√delta/2*a
x'=-3+3/2*(-5)=0

X''=-b-√delta/2*a
x"= -3-3/2*(-5)=
x" = -6/(-5)
= 6/5